From 5286963066ce7420d80882528b5f07c28f39eacf Mon Sep 17 00:00:00 2001
From: Bruce Momjian <bruce@momjian.us>
Date: Wed, 17 Apr 2013 17:39:14 -0400
Subject: [PATCH] pg_upgrade:  Add checksum C comment

We might eventually allow checksum to no-checksum upgrades.
---
 contrib/pg_upgrade/controldata.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/contrib/pg_upgrade/controldata.c b/contrib/pg_upgrade/controldata.c
index 41a8c694e7a..e9376e207f4 100644
--- a/contrib/pg_upgrade/controldata.c
+++ b/contrib/pg_upgrade/controldata.c
@@ -621,6 +621,7 @@ check_control_data(ControlData *oldctrl,
 			   "options.\n");
 	}
 
+	/* We might eventually allow upgrades from checksum to no-checksum clusters. */
 	if (oldctrl->data_checksums != newctrl->data_checksums)
 	{
 		pg_log(PG_FATAL,
-- 
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